chenkovsky commented on PR #14362:
URL: https://github.com/apache/datafusion/pull/14362#issuecomment-2623096983
something like this.
```rust
#[tokio::test]
async fn test_name_conflict() {
let batch = record_batch!(
("_rowid", UInt32, [0, 1, 2]),
("_rowid", Utf8, ["file-0", "file-1", "file-2"])
)
.unwrap();
let batch = batch
.with_schema(Arc::new(Schema::new(vec![
Field::new("_rowid", DataType::UInt32, true).to_system_column(),
Field::new("_rowid", DataType::Utf8, true),
])))
.unwrap();
let ctx = SessionContext::new_with_config(
SessionConfig::new().with_information_schema(true),
);
let _ = ctx.register_batch("test", batch);
let select = "SELECT _rowid FROM test";
let df = ctx.sql(select).await.unwrap();
let batchs = df.collect().await.unwrap();
let expected = [
"+--------+",
"| _rowid |",
"+--------+",
"| file-0 |",
"| file-1 |",
"| file-2 |",
"+--------+",
];
assert_batches_sorted_eq!(expected, &batchs);
}
```
Currently DuplicateQualifiedField error is thrown. But it's valid in spark.
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